| Value | Category | Cases | |
|---|---|---|---|
| 1 | Not effective at all | 0 |
0%
|
| 3 | 4 |
3.1%
|
|
| 4 | 6 |
4.7%
|
|
| 5 | 12 |
9.3%
|
|
| 6 | 8 |
6.2%
|
|
| 7 | 29 |
22.5%
|
|
| 8 | 61 |
47.3%
|
|
| 9 | 8 |
6.2%
|
|
| 10 | Very effective | 1 |
0.8%
|
| 11 | Don't know | 71 | |
| Sysmiss | 2 |